Stem winding and setting mechanism for watches.



No. 833,489. PATENTED OCT. 16, 1906- E. STAEHLI. STEM WINDING. AND SETTING MECHANISM FOR WATCHES.

APPLICATION FILED JUNE 8. 1904.

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the same with the mechanism in position for UNITED srArns PATENT o EIoE. EDWARD STAEHLI. OF 856cc, 'rnLrnols. srzm wmpme And ssh-me. msc umlu sm so? war or-12's.

and State of Illinois, have invented a certain new and useful Improvement in Stem Winding and Setting Mechanism for Watches, of

which the following is a specification.

This invention relates to that class of stem winding and setting mechanism for watches in which an axial outward adjustmentof the watch-crown effects an inward shift of a clutch wheel or member into operative engagementi'with a pinion of the hand-setting mechanism and an axial inward adjustment of said crown to its normal position effects an outward shift of said clutch-wheel into operative engagement with the inion of the watch-winding mechanism; an the present improvement has for its object to provide a simple and efficient structural formation and combination of parts in the intermediate mechanism between the winding-stem and the clutch-wheel of the mechanism, whereby an eas certain, and effective operation is insure and which is equally adapted to closed and open face watches, as well as to watches which varyin the relative proportions of their parts, all as will hereinafter more fully appear.

In the accompanying drawings, illustrative of the present-invention, Figure 1 is an enlarged front. view of my improved stem winding and setting mechanism for watches with the mechanism'in position for winding the watch. Fig. 2 is an'enlarged rear view thereof with the mechanism in a similar po- Fig. 3 is an enlarged front view'of setting the hands. Fig. 4 is an enlarged rear viewjhereof with the mechanism in a similar position. Fig. 5 is a detail longitudinal section at line a: :c, Fig. 2. Fig. 6 is a detai transverse section at line as 2:, Fig.2

Similar numerals of reference indicate like parts in the several views.

Referring to the drawings, 1 represents the watch-case, havinga tubular pendant 2, in which the set-sleeve 3 and the male stem 4 of the whirling-crown 5 are arranged, as

tion of the present shifting mechanism, with a'transverse orifice to receive the winding- Speciflcation of Letter! ?ateiit. Applioatlondledlnno 8,1904. Serial s 211.626.

- Patented Oct. 16, 1906.

* pinion 7 of the mechanism and hold the same in positionp'with a secondary transverse. orifice connecting with the orifice aforesaid and adapted to receive and permit axial adjustment of the clutch member 01' wheel 8 and with-a cross-piece or bridge 9 at the lower end of the seconda orifice aforesaid to form an abutment for t e inner end of ofthe teeth 10, adapted for operative engagement with a like set of ratchet-teeth on the adjacent under side of the-wmding-pinion 7 of the winding mechanism, and at its lower end such clutch member is formed with a cir cular set of gear-teeth 11, adapted for operative engagement with the pinion 12 of the hand-setting mechanism. Such clutch memher is adapted to have limited independent axial adjustment upon the tubular windingstem hereinafter described, in order that said clutch member may be moved from one to the other of the above described engagements.

1.3 is a peripheral recess theclutch member 8 and intermediate of its length for operative engagement with an arm of the secondary lever of the shifting mechanism hereinafter described.

14 is a tubular winding-stem having a square or like non-circular lower shank portion in o erative engagement with a corre-' sponding -formd bore of the clutch memher 8 aforesaid. Said winding-stem is also" provided with an upper enlarged head 15, recessed centrally to form a non-circular orifice for o erative engagement with the non-circular ower end of the male stem 4 of the winding-crown 5 in a manner to permit of limited axial adjustment between the parts, as usual in the present type of stem winding andsetting watches.

161s a push-rod extending-axially through the tubularbore of the winding-stem 14. The- 0 against the upper end of said rod has bearin under side of the male stem4 aforesaid, and its lowerend is preferably provided with a en a e head or enlargement 1.7 .lor operative engagement by the prnnary lever of the shifting 1n'echan'ism"hcreinalter d escribed.

18 s the pr mary lever of the present shifting mechanism, pivoted to the inner plate 6,"

as shown. The inner arm of said lever is of an outwardly-curved form and is arranged'to I against' the inner end of the push-rod 16 'al ei:esair l ,"while the outer arm of said lever is'al so of outwardly-curved form and car' ries nearits free end a lateral pin or stud 19,

,the assemblage and removal of theparts.

23'is the secondary lever of the shiftin mechanism, having a short inwardly-curver arm, and pivoted to the. main plate 6, as shown, The main arm of said lever is substaritially straight, with its free end in operativelengagement with the peripheral recess 13 of the clutch member 8, while the'oth'er arm is in angular relation to said main arm and is formedwith an inclined'inner cam-face 24, ending in a straight transverse end bearing'face 25, providing an extended guide fort. the lateral pin at an angle thereto concentric, with the. pivot-axis of the primary lever 18.

The arrangement is such that. as the pin 19 movesdownward against the inner inclined cam-face 24 it will impart a corresponding movement to the secondary lever 23 until the straight transverse end bearing-face 25 is reached, when the pin will move along the same without imparting any movement to the secondary lever 23 and without any liability to disengagement o f the parts due to an excessive downward movement of the pin 19. By such construction the present shifting mechanism is adapted to a wide ran e of watch-movements in that it provides or a wide difference in the adjustment of the winding-"stems of the different movements.

26 is a spring engaging the short inwardly- I curved arm of the secondary lever 23, with anormal tendency to move said lever in the direction which brings the clutch member 8 in operativeengagement with the pinion 7 of the winding mechanism. 'Such spring has mary lever 18, in order that said spring 21 will effect a shifting ofthe clutch member 8 to a hand-setting position, as more fully set forth in the operation of the mechanism.

"lhcibperation i siaslollows With the wi uding-crown .5 in the normal pos tion shown a in lfig. 1" its steme is in theinnenposit'ion shown in Figs; 1 and 5 to longitudinallv depress the push rod 16 and, through the pri-' mary and secondary levers 18 and 23-, maintain the .clutch member in its ipper ,position and in operative engagement with the pinion of flie -winding. mechanism. lVith, an outward movement of the winding-crown 5 andrits stem 41in theusual manner the holding stress of the stem 5 against the push:

lrod 16 is released, and 'said'rod follows-they stem 4 in its outward" movement under the stress-of the spring 21 and primary lever 18, and With'such lever moving under thestress of said spring the lateral pin 19 moves against the inner-inclined cam face24 of'the secondary lever 23 to impart movement to the main arm of s'aid secondary lever in aninward directionf'a-nd through the operative connection of said arm with the clutch member 8 the said clutchmeniber is moved in.-

wardly to release the prior operative engage-- ment thereof with the pinion 7 of the Winding mechanism andlto operatively engage its gear-teeth 11 with the inion 12 of the handsetting mechanism. he lateral pin 19 next asses onto the' straight transverse end bearing-face 25 to positively hold the'secondary 4 lever 23 without imparting movement there to. With the completion of the hand-setting operation the winding-crown 5 is ushed back to its normal position, thus shifting the lateral pin 19 :from the straight transverse end bearing-face, 25 and releasing the second- TOO ary lever 23, and areverse operation of the parts to thatlast described takes place and the clutch member 8.is returned to its normal engagement with the pinion 7 of the Winding mechanism.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is

A stem winding and setting mechanism for watches comprisinga primary lever carry- .inga lateral pin and a secondary lever having an armiorengaging the clutchmember, and a' short'rnwardlvpro ecting angulararm formed with an inclined mner canhface with which the lateral pin carried by the said primary lever engagestfo'r moving the said secondary lever, and w th a straight transverse end bearing-face located at an angle to the said inclined inner cam-face" rovidingan extended guide for the latent pin \concentric with the pivot of axis of the primary lever to positively hold the secondary lever without I imparting movement thereto. less resiliency than the spring '21'of the pri EDWARD STAEHLI. In presenceof F. GUY Canaan J. B. HALPENN 

